package com.fsotv.utils;

import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;

import android.os.AsyncTask;
import android.util.Log;

public class DownloadFileHelper {
	
    /**
     * Background Async Task to download file
     * */
    class DownloadFileFromURL extends AsyncTask<String, String, String> {
 
        /**
         * Before starting background thread
         * Show Progress Bar Dialog
         * */
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            //showDialog(progress_bar_type);
        }
 
        /**
         * Downloading file in background thread
         * */
        @Override
        protected String doInBackground(String... f_url) {
            int count;
            try {
            	String fUrl = f_url[0]; // Url of file
            	String desUrl = f_url[1]; // Where to store file 
            	
                URL url = new URL(fUrl);
                URLConnection conection = url.openConnection();
                conection.connect();
                // this will be useful so that you can show a tipical 0-100% progress bar
                int lenghtOfFile = conection.getContentLength();
 
                // download the file
                InputStream input = new BufferedInputStream(url.openStream(), 8192);
 
                // Output stream
                OutputStream output = new FileOutputStream(desUrl);
 
                byte data[] = new byte[1024];
 
                long total = 0;
 
                while ((count = input.read(data)) != -1) {
                    total += count;
                    // publishing the progress....
                    // After this onProgressUpdate will be called
                    publishProgress(""+(int)((total*100)/lenghtOfFile));
 
                    // writing data to file
                    output.write(data, 0, count);
                }
 
                // flushing output
                output.flush();
 
                // closing streams
                output.close();
                input.close();
 
            } catch (Exception e) {
                Log.e("Error: ", e.getMessage());
            }
 
            return null;
        }
 
        /**
         * Updating progress bar
         * */
        protected void onProgressUpdate(String... progress) {
            // setting progress percentage
            //pDialog.setProgress(Integer.parseInt(progress[0]));
       }
 
        /**
         * After completing background task
         * Dismiss the progress dialog
         * **/
        @Override
        protected void onPostExecute(String file_url) {
        }
    }
}
